Find Out If Your Seeds Are Still Good With This Handy Chart

Have you ever dug into a pile of old seeds and wondered if they're still good? How long do seeds last anyway? The short answer: It depends.

Here's what you need to know about storing your seeds properly and what you can do to maximize the shelf life of your vegetable, herb, and flower seeds.

And you can take this info with you: simply download my free cheat sheet so you'll always know how long you can expect the most common garden seeds to last under ideal conditions.

Can you freeze seeds to make them last longer?

Yes. All seed banks freeze seeds that are intended for long-term storage, and you can do the same at home.

The key is to start with thoroughly dried seeds (if you saved them from your own plants) and store them in airtight, freeze-proof containers to reduce the risk of seeds absorbing moisture. Keep the seeds in a reliable freezer that maintains consistent temperatures and isn’t opened often.

What temperature will kill seeds?

Seeds begin to die at temperatures above 108°F and are completely sterilized at 140°F (which usually happens in hot compost piles).

However, it only takes consistent high temperatures over 90°F to affect the embryo inside a seed and lessen the chances of germination.

Should you vacuum seal seeds?

If you want to store seeds long-term, vacuum sealing is the ultimate method of seed preservation. Start with very dry seeds before vacuum sealing them in a plastic bag and storing them in a fridge or freezer (below 40°F).

Swipe up to learn more.